EP 2899704 A1 20150729 - Power management alarm devices
Title (en)
Power management alarm devices
Title (de)
Alarmvorrichtungen zur Leistungsverwaltung
Title (fr)
Dispositifs d'alarme de gestion d'alimentation
Publication
Application
Priority
US 201414166485 A 20140128
Abstract (en)
A system including an alarm device, the alarm device further includes a switch mode buck converter, a capacitor that is charged by the buck converter, a boost converter that powers an output device primarily from energy drawn from the capacitor and circuitry coupled to the buck converter and boost converter, wherein the buck converter charges the capacitor with a relatively constant current and wherein the circuitry dynamically adjusts an instantaneous duty cycle of the buck converter to achieve the constant current based upon a power setting of the output device.
IPC 8 full level
G08B 5/38 (2006.01); G08B 25/04 (2006.01); G08B 29/18 (2006.01); H02M 3/158 (2006.01); H05B 44/00 (2022.01)
CPC (source: EP US)
G08B 5/38 (2013.01 - EP US); G08B 17/00 (2013.01 - US); G08B 21/18 (2013.01 - US); G08B 25/04 (2013.01 - EP US); G08B 29/181 (2013.01 - EP US); H02M 3/156 (2013.01 - EP US); H02M 3/1582 (2013.01 - US); H05B 45/375 (2020.01 - EP US); H05B 45/38 (2020.01 - EP US); H02M 1/007 (2021.05 - EP US)
Citation (search report)
- [Y] CN 202196396 U 20120418 - XIANGHUI LIU
- [Y] US 6242896 B1 20010605 - NIEBERGER MATHEW A [US]
- [Y] CN 201984471 U 20110921 - LONGJIAO MU, et al
- [Y] CN 202383806 U 20120815 - UNIV NORTHEAST PETROLEUM
- [Y] FR 2934703 A1 20100205 - TAG TECHNOLOGIES [FR]
- [A] US 2013193865 A1 20130801 - KELLER JOSEPH RUDY [US], et al
- [A] US 2009167260 A1 20090702 - PAURITSCH MANFRED [AT], et al
- [L] "Buck converter - Wikipedia", 5 June 2015 (2015-06-05), XP002740861, Retrieved from the Internet <URL:https://en.wikipedia.org/wiki/Buck_converter> [retrieved on 20150612]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2899704 A1 20150729; EP 2899704 B1 20190424; US 2015214842 A1 20150730; US 9225249 B2 20151229
DOCDB simple family (application)
EP 15152166 A 20150122; US 201414166485 A 20140128